Canning apparatus



i A. K. MALMQUIST CANNING APPARATUS Filed. Aug. 18. 1922 19 Sheets-Sheet 1 4? 1927' A. K. MALMQUIST CANNING APPARATUS Filed Aug. 18. 1922 19 Sheets-Sheet 2 gum-Ida's t0 4 0 0c 1927 A. K. MALMQUIST CANNING APPARATUS Filed Aug 18. 1922 19 Sheets-Sheet 3 inventor A. K. MALMQUIST CANNING APPARATUS Filed Aug. 18. 1922 19 Sheets-Sheet 4 0 0 w 2 AHIW -W a 4 5 w a w a P. H.\Il 7 0 00 2 w 9 m gnvcnloz- Oct. 4 1927.

1,643,990 A. K. MALMQUIST CANNING APPARATUS Filed Aug. 18. 1922 19 Sheets-Sheet 5 imam attorneys 1927' A. K. MALMQUIST CANNING APPARATUS 19 Sheets-$heet 6 Filed Aug. l8. 1922 A. K. MALMQUIST CANNING APPARATUS Filed Aug. 18. 1922 19 Sheets-Sheet 7 gnvc-nfoz 1mm w A. K. MALMQUIST CANNING APPARATUS Filed Aug. 18. 1922 19 Shaets-$heet 8 gnvenhaz (Mal i 0% Uttu 4 g 1927 A. K. MALMQUIST GANNING APPARATUS Filed Aug. 18. 1922 19 Sheets-Sheet 10 Oct. 4,1927. 1,643,990 A. K. MALMQUIST QANNING APPARATUS Filed Aug. 18. 1922 19 Sheets-Sheet ll llllllllglililwW HIIIIHJJNH H l 3 990 1927' A. K. MALMQUIST CANNING APPARATUS Filed Aug. 18. 1922 19 She6t8-$h99t 12 wuenloc 1,643,990 1927' A. K. MALMQUIST GANNING APPARATUS 19 Sheets-Sheet 13 I i /34 E /3 I 1,643,990 1927' A. K. MALMQUIST CANNING APPARATUS Filed Aug. 18. 1922 19 Sheets-Sheet 14 Oct. 1927' K, MALMQUIST CANNING APPARATUS Filed Aug. 18. 1922 19 Sheets-Sheet 15 June n or 1927' A. K. MALMQUIST CANNING APPARATUS Filed Aug. 18. 1922 19 Sheets-Sheet l6 gnuc-nhn.

Uct 1927'.

1,643,990 A. K MALMQUIST cAmmm APPARATUS Flled Aug 18 1922 19 Sheets-Sheet 1'7 allozufgs 1927 A. K. MALMQUIST CANNI NG APPARATUS Filed Aug. 18. 1922 a 19 Sheets-Sheet 18 1927' A. K. MALMQUIS I CANNING APPARATUS 'Eiled Aug. 18. 1922 19 Sheets-Sheet 19 snow: lot

IHHIIEII l IWHII Patented Oct. 4, 1927.

UNlTED STATES PATENT OFFICE.

ADOLIPH K. MALMQUIST, OF SOUTH IBELLINGHAM, WASHINGTON, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THERMOKEPT CORPORATION, OF NEW YORK, N. Y., A CORPOBA- TION OF DELAWARE.

CANNING APPARATUS.

Application filed August 18, 1922.

This invention relates to an improvement in canning apparatus.

Heretofore, difficulty has been experienced in satisfactorily filling and sealing cans in vacuum on account of imperfections in the open flanged portion of some of the cans.

In order to obtain good results, the open end portion of cans and their flanges must be correct and regular, otherwise good results cannot be obtained. A dented or irregular can flange will not seat properly and accurately on a pad under the filling valve; the can will leak and will not be uniformly filled with liquid, and when the cap or cover is afterwards seamed to a dented can flange, the cement or paper lining used in the cap as a packing in the seam, will be spoiled by sharp pointed dents on the flange of the can, such pointed dents causing the packing to be cut while the finished can might seem from external appearance to have been perfectly sealed, but it will leak to a greater or less extent. The leak might be very small, but it will become enlarged in the final cooking operation and may (in the event of a very small leak) become closed when the can cools. The can might then be tight, but the vacuous condition therein will have become destroyed and the contents of the can will. not be preserved as well as it would if all the cans be perfectly sealed before leaving the vacuous seaming chamber.

One object of my present invention is to provide means in a canning apparatus, whereby the perfect sealing of cans in.vacuum shall be insured.

A further object is to provide means which shall be operable automatically to insure the correct and accurate formation of the open end of the cans and their flanges before they are applied to the liquid filling means.

A further object is to provide a canning apparatus which shall operate automatically to exhaust a chamber in which a can which may contain solid food is located; to fill such can with liquid while in said vacuous chamber; to reduce the degree of vacuum in said chamber; to transfer the filled can to another chamber; to create a vacuous condition in said last-mentioned chamber, and to effectually seal a cap to the can in said lastm-entioned chamber while the vacuous condition is maintained therein.

A further object is to provide can sealing Serial No. 582,712.

apparatus which shall operate automatically to perfect or shape the flanged open portions of cans; to discharge liquid into each can while the same is contained in a vacuous chamber; to transfer each can to another vacuous chamber; to supply a cap for each can; to scam the cap to the can while the vacuous condition is maintained in the lastnientioned vacuous chamber, and finally to discharge the hermetically sealed can.

With these and other objects in view, the invention consists in certain novel features of construction and combinations and a1,- rangement of parts as hereinafter set forth and pointed out in the claims.

In the accompanying drawings; Figure 1 is a plan view of the apparatus; Figure 2 is a sectional view on the line 2-2 of Figure 1 showing the can flange perfecting and the liquid filling mechanisms; Figure 3 is a View in side elevation showing the filling and sealing portions of the apparatus and driving gearing; Figure 1 is a sectional view showing parts of the seaming mechanism, the valve or transfer mechanism for cans and caps, cap mechanism and portions of the gearing; Figure 5 is aplan view showing the gearing transmission; Figure 6 is a horizontal sectional view showing the various mechanisms and their relation to each other; Figure 7 is a diagrammatical view illustrating the travel of a can through the apparatus and also the travel of a cap to be sccured to a can; Figures 8 and 9 are detail views in plan and elevation respectively illustrating parts of the can feeding mechanism; Figure 9 is a detail sectional view showing the holding pin and associated parts; Figure 10 is a sectional view showing one of the units of the can flange-perfecting mechanism with the jaws open and the flanging. head in retracted position; Figure 11 is a sectional view partly in elevation taken at right angles to Figure 10; Figures 12, 13 and 14 are views of certain details of the flange perfecting mechanism; Figure 15 is a view illustrating a can having an imperfect flanged portion; Figure 16 is a view of the can after it shall have been 0 erated upon by the flange perfecting mec anism; Figures 17 and 18 and 19 and 20 are views illustrating different positions assumed by parts of the flange perfecting mechanism; Figures 21, 22, 23,- 24, 25, 26, 

